Click here to download ELECTRO-VOICE MTX-4A (01) PDF MANUAL


PDF Content Summary:

****** Page 1 ****** CROSSOVER/EQUALIZER/DELAY UNIT OWNER’S OPERATION AND SERVICE MANUAL

****** Page 2 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Table of Contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 DESCRIPTION. . EQUALIZATION SECTIONS 2.1 Midrange and High-Frequency Equalization 2.2 Low-Frequency Protection TIME DELAY . 3.1 Time Delay Circuit CONNECTIONS 4.1 Input and Outputs POWER 5.1 Power Indicator 5.2 AC Line Voltage Selection 5.3 Fuses CONTROL FUNCTIONS 6.1 Input Level Indicator 6.2 Level Controls 6.3 Mute Switches OUTPUT TRANSFORMERS 7.1 Transformer Installation INSTALLATION 8.1 Rack Mounting 8.2 Ventilation IN CASE OF PROBLEMS MT-4A SPEAKER SYSTEM LINKWITZ-RILEY NETWORKS SPECIFICATIONS WARRANIY STATEMENT SERVICE INSTRUCTIONS SERVICE INFORMATION Electro-Voice • a Mark IV Company Unit i

****** Page 3 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit 1 DESCRIPTION The midrange and high-frequency equalization circuits accurately equalize the high performance compression driver/constant dir- ectivity horn combinations in the MTH-4A. This EQ is necessary because all horn/driver combin- ations that combine high overall efficiency with constant directivity exhibit a high frequency B)wer- response roll off. 2.2 Low-Frequency Pro- tection A high-pass filter, with a corner frequency of 32 Hz, protects the speaker from infrasonic frequen- cies. The overall system acoustic corner frequency is 37 Hz. resistor allows pin 1 to follow the other ground reference. A solid chassis ground connection can be obtained at the connector shell. The floating-differential input and outputs can be unbalanced and referenced to other equipment, or they can be connected to balanced lines. If a true balanced source (or load) is needed, connect a 300- ohm resistor from pin 2 to pin 1 and another 300-ohm resistor from pin 3 to pin 1. ‘O The MIX-4A electronic cross- over/equalizer/delay unit is ded- icated to the MT-4A Manifold Techn010ß’ concert sound loud- speaker system. This signal pro- cessor, with fixed crossover freq- uencies, equalization, and time delay, was designed to obtain opti- mal performance from the MT- 4A. A brief description of the MT- 4A appears in the MT-4A Speaker System section. The crossover section of the MTX- 4A is a 4-way fourth-order Link- witz-Riley frequency-dividing net- work. ‘Ihis configuration has two unique advantages over a third- order Butterworth network. First, a fourth-order network offers an out-of-passband attenuation rate of 24 dB per octave, greater than the 18-dB-per-octave rate of a third-order network. This provides better protection of drivers from energy outside their intended frequency range. Second, the use of a Linkwitz-Riley network re- sults in zero Iobing error, and smoother overall frequency re- sponse in the crossover region. See the Linkwitz-Riley Network section for more information about Iobing error. Other features include a differ- ential input and a level display for optimizing dynamic range. Each output section has a level control with a mute switch. The outputs are normally floating active differential. They may be trans- former coupled by installing two of the TRB-I transformer kits. The MIX-4A mounts in one EIA rack space. Figure 2 shows the MTX-4A block diagram. 5 5.1 POWER Power Indicator 3 3.1 TIME DELAY Time Delay Circuit A green LED on the front panel indicates when ac power is on. The power supply is designed so that the unit can deliver ± 18 dBu at line voltages as low as 90 V ac. the MTX-4A may be left on indefinitely or externally switched with other equipment. Three of the four outputs on the MTX•4A have a time-delay circuit which correct for the time and phase-response differences which exist due to path-length differ- ences of the MT-4A Speaker Sys- tern. The delay sections are four- pole all-pass filters. A delay is acoustically equivalent to phys- ically moving the corresponding speaker with respect to the others. The midbass output does not have a delay network since it is the rear most section of the speaker system in a normal setup. CONNECTIONS 4 Input and Outputs 4.1 The input connector is a 3-pin fe- male XLR type; output connectors are 3-pin male XLR types. Pins 2 and 3 are signal and each pin 1 is connected through a 10-ohm re- sistor to chassis ground. This grounding arrangement works well in most installations; pin 1 can be used as a ground reference or, if there is another reference (a ground loop is formed), then the Electro-Voice • a Mark IV Company 5.2 AC Line Voltage Selection 2 2.1 EQUALIZATION SEC- TIONS Midrange and High- Frequency Equal- ization The MIX-4A is constructed using a universal AC power transformer. Six primary wires from the trans- former run to a strip of solder lugs. These leads are connected in various combinations to allow the power transformer to operate on 100, 120, 220 or 240 volts. Access to the transformer and terminal strip is gained by re- moval cf the top cover of the unit. Remove two screws on each side and two screws on the back of the unit. Figure 5 shows the various com- binations of lead and strap con- nections for various voltages. 5.3 Fuses Por voltages of 100 and 120 volts use a 0.175 amp, 250 volt, slo-blo type fuse. The fuse holder cap 1

****** Page 4 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit supplied with the unit holds type AGC 1/4″ X 1 3/4″ fuses. For 220 and 240 volts use a 0.080 amp, 250 volt, slo-blo fuse. G CONTROL FUNC- TIONS lation The outputs of the MTX-4A can be transformer coupled by in- stalling two of the optional TRB-I transformer pairs. This should be done by a qualified technician. Re- move two screws from each side and the back, and lift off the top cover. Then remove three screws holding the circuit board to the chassis, and four hex screws from the front panel. The circuit board, with the front panel attached, can then be removed from the chassis. There are eight jumpers which must be removed from the board so that the transformers will have proper drive, feedback and output connections. The jumpers are la- beled JPI through JP8 (see figure 4). To remove a jumper, clip the lead at each end and remove the center section. The transformer lead layout is asymmetrical, so verify the orien- tation of the transformer leads with the holes in the circuit board before installing. Solder all con- nections on the foil side of the board. Reassemble the M TX-4A in reverse order from the description above. INSTALLATION 8 8.1 Rack Mounting The MIX-4A may be installed in a standard 19 inch equipment rack. It requires 1 3/4 inches of vertical rack space and mounting is accomplished by using four rack mount screws provided. 8.2 Ventilation The MTX-4A must be adequately ventilated to avoid excessive temperature rise. It should not be used in areas where the ambient temperature exceeds 600C (1400F). To determine the ambient air temperature, operate the system Electro-Voice • a Mark IV Company in the rack until the temperature stabilizes. Measure the ambient air with a bulb-type thermometer held at the bottom of the upper- most unit. Do not let the therm- ometer touch the metal chassis because the chassis will be hotter than the ambient air. If the temperature exceeds 600 (1400F), the equipment should be spaced at least 1 3/4 inches apart or a blower installed to provide su- fficient air movement within the cabinet. WARNING: Input Level Indicator 6.1 The level of the input signal to the MTX-4A is monitored with three LED,s. The green LED indi- cates signals above -20 dBu, and the yellow LED lights when the signal reaches O dBu. The red LED lights if the input or any output exceeds +16 dBu. In nor- mal operation, the yellow LED should light much of the time (indicating normal signal level) but the red LED should not light. 6.2 Level Controls Each of the four outputs has a level control with ± 12 dB range. If the power amplifier channels have equal gain, then the center detent position is calibrated for flat MT-4A system frequency re- sponse in an anechoic environ- ment. The level controls are in- tended for fine-tuning the system response; large differences in pow- er amplifier sensitivities should be compensated by adjustment of the power amplifier attenuators. 6.3 Mute Switches Pour mute switches are located on the front panel. V%en the mute switch is depressed, the cor- responding output will be disabled and a red LED lights to indicate the muted output. These switches are useful for setup, calibration, and troubleshooting. 9 Do not operate the MTX- 4A within a completely closed, unventilated hous- ing. IN CASE OF PROB- LEMS Please check the following items: 1. 2. 3. 4. 10 verify the MTx-4A is properly connected to an ac power source and that the source is active. Verify that the ac line fuse is not open. Verify the input and out- put connections are prop- erly made, as well as ca- bles for proper wiring and continuity. Check the signal source and load. MT-4A SPEAKER SYSTEM OUTPUT TRANS- FORMERS Tran sformer Instal- The MT-4A is a two-box, four-way active loudspeaker system util- izing Manifold TechnologrTM over the entire audio frequency range. One enclosure is the MTL-4A low frequency system, a vented-box design comprised of four 18-inch woofers, each facing into a man- ifold chamber at the center of the cabinet. The second enclosure is 7.1 2

****** Page 5 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit the MTH-4A midbass/mid- range/high frequency system, a three-way horn-loaded systems utilizing four drivers in each frequency range for a total of twelve drivers in a remarkably small package. The technique of manifolding, perfected by Electro- Voice engineers, effectively sums the output of four loudspeakers, producing from the four a single coherent source. The advantage of manifolding over multiple sources are improved directivity control and audience coverage, reduced polar Iobing, extremely high power-to-enclosure-volume ratios, and in some instances reduced distortion and increased efficiency. 11 LINKWITZ-RILEY NETWORKS Linkwitz-Riley networks have zero Iobing error because their outputs are (1) in phase in the crossover region and (2) 6 dB down at the crossover frequency. (The outputs of a third-order Butterworth network are 90 de- grees apart and 3 dB down at the crossover frequency.) The acoustic consequences of zero Iobing error can be appreciated by considering a two-way speaker system. For simplicity, assume that the sound from each trans- ducer radiates from oxat•tly the same vertical plane, i.e., the driv- ers have no time delay with re- spect to each other. Under these conditions: 1. A Linkwitz-Riley net- work promotes smoother overall frequency response in the crossover region, considering observation points both on and off the system axis. Frequency re- sponse is flat on the sys- tem axis and there are no ofT axis response peaks. In contrast, when a third- order Butterworth net- work provides flat re- sponse on axis, a 3 dB peak must appear off axis, at that angle where the time delay due to different distances from the listener puts the two transducer outputs exactly in phase. 2. A Linkwitz-Riley net- work places the inevitable interference dips (due to two transducers providing output in the same fre- quency range) symmetric- ally above and below the system axis. The lobe in between is aimed along the system axis. In con- trast, a third-order But- terworth network aims the lobe at some angle re- lative to the system axis, a consequence of 90 degrees phase difference between the outputs of the net- work. The angle* of the lobe is the location of the Butterworth response peak described above. Amore detailed and graphic treat- ment of the subject is available in a number of technical articles, in- cluding: 1. S.H. Linkwitz, “Active Crossover Networks for Noncoincident Drivers,” J. Audio Eng. Soc., vol. 24, pp. 2-8 (1976 January/Fe- bruary). 2. S.P. Lipwitz and J. Vanderkooy, “A Family of Linear-Phase Crossover Networks of High Slope Derived by Time Delay,” J. Audio Eng. Soc., vol. 31, pp. 2-20 (1983 Janu- ary/February).

****** Page 6 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit 12 SPECIFICATIONS Channel Configuration: Filter Type: Crossover Frequencies: Low: Midbass: Midrange: Output Delays: Range: Low: Midrange: High: Infrasonic Speaker Protection: Filter Type: Corner Frequency: Input: Maximum Lavel: Impedance: Com@-Mode Volt. Range: Typ. Com@-Mode Rej. Ratio: Connector: Main Outputs; Maximum Level: Impedance: Min. Toad Impedance for Full Output Level: Protection: Connectors: Monaural four way. Fourth-order Link- witz-Riley (24-dB- per-octave atten- Gain: (Controls at Center Detent) Low: Midbass: Midrange: High: Adj. Range re Center Detent, Continuously Variable: Total Harmonic Distortion, Typical: Maximum: Noise: (Each Output, Controls Flat) Typical: Low Output Midbass Midrange High fransient Performance: LED Level Indicators: (level-dependent brightness provides enhanced resolution) Green: Yellow: Red: Front-Panel Controls, Each Output: Chassis Construction: Colors: Mounting: -3.0 dB @ 100 Hz -10.4 dB @ 500 Hz -11 dB @ 2.5 kHz O dB @ 12.5 kHz dB 201-1z-20 kHz: 0.02% 0.1% -91 dBu -92 dBu -86 dBu -87 dBu Not limited by slew rate or power band- width under any normal operating condition, 20Hz-20 kHz Input level above – 20 dBu Input level above O dBu Input or any output level above +16 dBu Gain and channel mute Painted steel Black with white graphics Standard 19-in. rack panel, 1 3/4 in. high, 7 in. deep be- hind panel O uation) 160 Hz 1,600 Hz 10,000 Hz Fourth-order all- 2.6 ms at 160 Hz 480 ps at 1.6 kHz 84 gs at 10.0 kHz Third-order Butter- worth (18-dB-pr- octave slope) 32 Hz Active differential +18 dBu 20,000 ohms ±24V (net of signal voltage) -55dB at 1 kHz Female 3-pin XLR type Active floating dif- ferential (transfor- mer coupling kits are available as an accessory) +18 dBu 50 ohms 600 ohms Safe for short cir- cuit Male 3-pin XLR

****** Page 7 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit Optional Accessory: Power Requirements: Overall Dimensions: (see Figure 1); Height: Width: Depth: Net Weight: Shipping Weight: TRB-I set of two output isolation transformers (two sets required) 100, 120, 220, 240 VAC 50/60 Hz. User selectable. Supplied wired for 120 VAC with pow- er consumption of 12 watts. A de- tachable IEC line cord with 120 volt grounding plug is supplied. 44 mm (1.73 in.) 483 mm (19.0 in.) 185 mm (7.28 in.) 2.84 kg (6 lb, 4 oz) 3.35 kg (7 1b, 6 oz)

****** Page 8 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit ELECTRO-VOICE WARRANTY STATEMENT Electro-Voice products are guaranteed against malfunction due to defects in materials or workmanship for a specified period, as noted in the individual product-line statement(s) below, or in the individual product data sheet or owner’s manual, beginning with the date of original purchase. If such malfunctions during the specified period, the product will be repaired or replaced (at our option) without charge. The product will be returned to the customer prepaid. Exclusions and Limitations: The Limited Warranty does not apply to: (a) exterior finish or appearance; (b) certain specific items described in the individual product-line statement(s) below, or in the individual product data sheet or owner’s manual; (c) malfunction resulting from use or operation of the product other than as specified in the product data sheet or owner’s manual; (d) malfunction resulting from misuse or abuse of the product; (e) malfunction occurring at any time after repairs have been made to the product by anyone other than Electro-Voice or any of its authorized service representatives. Obtaining Warranty Service: To obtain warranty service, a customer must deliver the product, prepaid, to Electro-Voice or any of its authorized service representatives together with proof of purchase of the product in the form of a bill of sale or receipted invoice. A list of authorized service representatives is available from Electro-Voice at 600 Cecil Street, Buchanan, MI 49107 (616/695-6831) and/or Electro-Voice West at 8234 Doe Avenue, Visalia, CA 93291 (209/651-7777). Incidental and Consequential Damages Excluded: Product repair or replacement and return to the customer are only remedies provided to the customer. Electro-Voice shall not be liable for any incidental or consequential damages including, without limitation, injury to persons or property or loss of use. Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. Other Rights: This warranty gives you specific legal rights, and you may also have rights which vary from state to state. Electro-Voice Electronics are guaranteed against malfunction due to defects in materials or workmanship for a period of three (3) years from date of original purchase. Additional details are included in the Uniform Limited Warranty statement. O

****** Page 9 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit MTX-4A ELECTRONIC CROSSOVER/EQUALIZER/DELAY UNIT SERVICE INSTRUCTIONS No user serviceable parts inside. Hazardous voltage and currents may be encountered within the chassis. The service information contained within this document is for use only by ELECTRO-VOICE authorized warranty stations and qualified service personnel. To avoid electric shock, DO NOT perform any servicing other than that contained in the Operating Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel. o

****** Page 10 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit 15 SERVICE INFOR- MATION CAUTION: No user serviceable parts inside. Hazardous voltages and currents may be encountered within the chassis. The service information contained within this document is’ for use only by ELECTRO-VOICE authorized warranty stations and qualified service personnel. To avoid electric shock DO NOT perform any serv- icing other than that contained in the Operating Instructions unless you are qualified to do so. Other- wise, refer all servicing to qual- ified service personnel. NOTE: Modifications to ELECTRO-VOICE products are not recommended. Such modifi- cations shall be at the sole expense of the person(s) or company re- sponsible, and any damage re- suiting there from shall not be covered under warranty or other- uuse. Shown on pages 11 and 12 is the MTX-4A schematic. There are no internal adjustments which can be made. 15.1 Parts Ordering To order replacement parts, look up the ordering number from the parts list and write or call: Electro-Voice 600 Cecil Street Buchanan, MI 49107 U.S.A. (616) 695-6831 695-1304 n,rx: 810-270-3135 Electro-Voice West 8234 Doe Avenue Visalia, CA 93291 USA (209) 651-7777 FAX(209) 651-0164 TLX 172119 15.2 Factory Service If factory service is required, ship the unit prepaid to: Electro-Voice 600 Cecil Street Buchanan, MI 49107 U.S.A Electro-Voice West 8234 Doe Avenue Visalia, CA 93291 U.S.A Enclose a note describing the problem in as much detail as poss- ible. Include other helpful infor- mation such as test conditions, where used, how used, etc. 15.3 Technical Assistance For applications assist- ance/technical information, write or call: Electro-Voice 600 Cecil Street Buchanan, MI 49107 U.S.A (616) 695-6831 FAX(616) 695-1304 ‘rwx: 810-270-3135 Electro-Voice West 8234 Doe Avenue Visalia, CA 93291 U.S.A (209) 651-7777 FAX(209) 651-0164 TIX 172119 O

****** Page 11 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit 437 MM (17.2 IN) 483 MM (19.0 IN) FIGURE — Dhnsions uume W.w.u FIGURE 2 — MTX4A Block Diagram FIGURE 3 –rypkzl MTX4A TRANSFORME TRANSFORMERS 185 MM (7.28 IN) 44 MM (1.73 IN) OUt•ut souss Qtoq FIGURE 4 — Transfomv Khunting Læations to cut are shown as *’lid rectangles)

****** Page 12 ****** Installation and Operating Instructions for the Electro-Voice M TX-4A Xover/Eq/Delay Unit BL.X/öw1-ff BLK 1 oov BLK BLK BLU BLU BIX/WHT Bl.X BIX FIGURE 5A BLK BUJ 220V FIGURE SC 120V FIGURE 5B BL.X/’WHT BLU 240V FIGURE SD

****** Page 13 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit Schematic of M TX-4A Sheet 1 of 2

****** Page 14 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit 02 ceg cye ces C91 ctee aes Schematic of MTX-4A Sheet 2 of 2

****** Page 15 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit Component Parts Listing for the MTX-4A Reference Designator A1, 2, 3, 7 A4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 A19 A20, 21, 22, 23 A24 C4, 19, 22, 23, 39, 40, 41, 49, 50, 51, 62, 63, 64 C5, 6, 7, 8, 57, 58, 59, 60 CIO, 11, 12, 30, 31, 32 C13, 33 15, 16, 17 48, 61 94, 95, 96, 97, 99, 100 Ordering Number 17-01-122832 17-01-124688 17-01-124462 17-01-125208 17-01-027338 15-02-027326 15-02-026829 15-01-027327 15-01-028065 15-02-037646 15-06-037649 15-06-037650 15-06-037792 15-01-026793 15-02-107470 15-02-102603 15-02-100307 15-06-037651 15-02-027325 15-06-037652 15-06-037653 15-06-037648 15-06-037654 15-06-027322 15-06-027323 15-01-027318 15-01-027316 15-01-027317 15-02-028693 48-01-027340 48-01-027300 48-01-027339 39-01-026843 39-01-027841 39-01-027342 48-03-027337 48-03-027333 48-03-027336 48-03-027335 47-01-102062 47-01-102030 47-01-027372 Name and Description IC, 5532A IC, TL072CP rc, TL071CP IC, SSM2142 CIS, 38, C20 C21 C24, 42, 52, 65, 76, 78, 79 80, 81, 82, 83, 84, 85, 86 87, 88, 89, 90, 91, 92, 93 98, C25, 26, 27, 28 C29, 47, 53 cu, 85, 36, 37 C43, 44, 45, 46 C55, 56 C66, 67, 68, 69 C71y 72 C73, 74 C75, 77 CIOI, 102, 103, 104, 105 106, 107, 108, 109, 110 7, 8, 9 10 Dll, 12, 13, 14 D15, 16 LDI, 2, 3, 4, 6 LD7 LD8 QI, 7, 9 Q2, 3, 4, 5, 8 11 Q6 Q10 RI, 2, 154 R3, 50, 90, 111, 136 IC, 4186 Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, Capacitor, 1500 PF, 10%, loov 20 PR, 10%, 50V 47 gF, 20%, NP, 25V .01 2%, 50V, Poly 47 PF, 5%, loov, Disc .001 gF, 2%, 100V, Poly .0047 up, 2%, 100V, Poly 680 PF, 2%, 100V 22 pF, IOV 220 PF, 10%, 100v, Disc 120 PF, 10%, 100-500V, Disc .01 PR, 100V, Disc .047 pF, 2%, loov, Poly 150 PF, 100V, Disc .0015 ur, 2%, loov, Poly Capacitor, .1 pl? , 2%, 100V, Poly Capacitor, . 39 PR, 2%, 100V, Poly Capacitor, .039 ILF, 2%, 100V, Poly Capacitor, .01 pF, 50V, Mylar Capacitor, .022 PR, 20%, 250V Capacitor, 330 pF, 50V Capacitor, 100 gF, 35V Capacitor, 1000 PF, 35V Capacitor, .1 up, 20%, 50V, Disc Diode, IN4447 Diode, IN4006 Diode, Zener, 18V, IN4746A LED, Red, T-1 LED, Yellow, T-1 LED, Green, T-1 Transistor, MPS8090 Transistor, PN3645 Transistor, TIP32 Transistor, TIP31 Resistor, 220 Q, 1/4 W Resistor, 10 0, 1/4 W Resistor, 9.76 kQ, 1/4 W, M.F.

****** Page 16 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit 1/4 W, M F 1/4 W, M F 1/4 W, M F Reference Designator R6, 7, 32, 34, 35, 37, 38, 40, 41, 40, 75, 77, 78, 80, 81, 83, 84, 86, 94, 97, 98, 100, 121, 123, 124, 126, 127, 129, 130, 132 RS, 10, 17, 51, 53, 61, 91, 93, 101 R9, 52, 92 RII, 12, 55, 56, 95, 96 R13, 14, 16, 18 R15, 59, 99 R19, 66, 107, 112 R20, 62, 102, 114 R21, 22, 46, 47, 63, 64, 103, 105, 113, 115 R23 R24 R25, 67 R26 R27 R28, 71 R29 R30 R31, 86, 39, 42 R33, 76 R44, 87, 108, 133 R45, 146, 160, 163 R48, 49, 88, 89, 109, 110 134, 135, 159, 168 R54, 57, 58, 60 R65 R68 R69 R70 R72 R73 R74, 79, 82, 85 R104 R106 R116 R117 R118 R119 R120 R122, 125, 128, 131 R137s 138, 139, 144, 145 149, 150, 151, 153, 171 R140, 152, 158, 167, 169 R141 R142, 147 Ordering Number 47-03-109437 47-03-124697 47-03-124696 47-03-124699 47-03-037658 47-03-027328 47-03-028695 47-06-027344 47-03-037657 47-03-119021 47-03-037663 47-03-037664 47-03-037665 47-03-037667 47-03-037666 47-03-028160 47-03-124490 47-03-124681 47-03-124676 47-01-108491 47-01-102102 47-01-102078 47-03-027370 47-03-037668 47-03-037669 47-03-037670 47-03-037671 47-03-037672 47-03-037662 47-03-037673 47-03-037656 47-03-026836 47-03-028857 47-03-037659 47-03-037660 47-03-124484 47-03-037661 47-03-124837 47-01-102111 47-01-102104 47-01-102114 47-01- 102123 Name and Description Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, 10 m, 1/4 w, M.F. 3.24 m, 1/4 W, M.F. 4.99 kQ, W, M.F. 1.15 kQ, W, M.F. 1.58 m, w, M.F. 806 n, w, M.F. 5.11 kQ, W, M F Potentiometer, 50 kQ Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, Resistor, 24.3 kQ, – 7.68 kQ, – 15.4 kQ, 7.87 kQ, 75.0 kQ, 154 — 499 kQ, – 14.0 kQ, 1/4 W, M.F. 1/4 W, M F 6.34 m, 1/4 w, M.F. 24.9 m, 1/4 w, M.F. 1.21 m, w, M.F. 10 kQ, 1/4 W 1 kQ, 1/4 W 2.1 kQ, 1/4 W, M.F. 18.7 kQ, 15.8 kn, Resistor, 80.6 kQ, 127 k0, 30.1 kQ, 3.65 kQ, – 43.2 kn, – 19.6 kQ, 6.98 kQ, 8.06 kQ, 13.7 kn, – 3.32 kn, – 15.0 kQ, – 825 kn, 39.2 kQ, 1/4 W, M F ± 10/0, 24 k0, 12 m, 33 kQ, 68 kQ,

****** Page 17 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit Reference Designator R143, 161, 165 R148 R155, 170 R156 R157,166 R162, 164 TSI CNI J2, 3, 4, 5 Power Indicator Ordering Number 47-01-102095 47-01-102107 47-01-102071 47-01-102054 47-03-026840 47-01-102122 51-02-026810 56-08-026893 21-01-026799 21-02-026845 21-01-124470 21-01-124642 21-01-027343 21-02-026774 21-01-026804 15-02-026884 51-07-026796 51-04-027350 39-01-027342 24-04-026780 24-04-026896 60-06-124962 Name and Description Resistor, 5.1 kQ, ±5%, 1/4 W Resistor, 16 kQ, ±5%, 1/4 W Resistor, 510 n, 1/4 W Resistor, 100 n, 1/4 w Resistor, 2.2 Q, ±5%, 1/4 W Resistor, 62 kn, 1/4 W Switch, Push-button Transformer, Power Strip, terminal, 6 Pos. Connector, 3 Pin IDT Connector, XLR Female Connector, XLR Male Connector, receptacle, 2 pin Receptacle, AC Power Header, 3 Pin, W/Lock Capacitor, .01 pF, 250V, Ceramic UL Aprvd. Cap, Fuse Fuse, .175A 250V LED, Green, T-1 Knob, Small Knob, Push Cable, Power

****** Page 18 ****** Installation and Operating Instructions for the Electro-Voice MTX-4A Xover/Eq/Delay Unit 60) Cecil Street, Buchanan, Michigan 49107, Phone (616)695-68.31, Fax: 616 695-1304 8234 Avenue. Vtsaua CaEfcrnia 93291. (209)651-7777. Fax tv Q. 345 St. cota-io. Ca•-eda K7G an. (613)382-214t. Fax (613)382-7466 5. Pl-me 33 Fax 11221 MaQ rv Audio Japan. 2-5-60 Tokyo, Japan Phone (01 wro-332s-mo, Mark iV GmbH. I-archenstrasse €230 Frankfu•VbÆain 80, Germany, Phone Fax (011)49-69-38-9$9 Electrevicic,e Ltd.. Unit 24. Blcx* C. Slough Business Paric Shugh Ave.. Silverwater, N.S.W, 2141 , AustraEa. Phone 061/2-648-3455. Fax (01 IFI/2-648-%5R5 Audio Corsuåtmts, co. Ltd. Flat 8 Luk Hop LLk Hop Industrial Po Kong. Hong Kong. Phone 0852/351-3329

FREE ENGLISH PDF

OPERATING INSTRUCTIONS

USER GUIDE – USER MANUAL

OWNER GUIDE – OWNER MANUAL

REFERENCE GUIDE – REFERENCE MANUAL

INSTRUCTION GUIDE – INSTRUCTION MANUAL



ELECTRO-VOICE MTX-4A (01) PDF MANUAL

Leave a comment, question, review or page error below. Account not required.

This site uses Akismet to reduce spam. Learn how your comment data is processed.